Car-replacer



E. W. K. ROE.

CA8 REPLACER.

APPLICATION FILED JUNE 19. 1919.

Patented Feb. 3, 1920.

UNITED STATES PATENT OFFICE.

EMIL W. K. ROE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE ALDON COMPANY, OFCHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

OAR-REPLAGER.

Application filed June 19, 1919.

To all whom it may concern:

Be it known that I, EMIL W. K. Ron, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Car-Replacers, of whichthe following is a specification.

The object of this invention is to improve that type of car replacerdisclosed in U. S. Patent No. 789,384 granted to me May 9, 1905, as EmilTV. Rosenberg (since changed by formal court proceedings), toadaptthedevice for the increased size and weight of modern locomotives,tenders and cars.

A further object of the invention is to reinforce and strengthen a carreplacer against the wear of the flange of the wheels and .toaccommodate locomotives, tenders and cars of the largest size and weightwitlr out adding materially to the cost and weight of the replacer.

In the accompanying drawings illustrating a preferred embodiment of theinvention,

Figure l is a to 3 plan view.

Fig. 2 is a side elevation.

Figs. 3, 4, and 5 are sectional views on the lines 3-8, 44, and 55respectively of Fig. 1.

Referring to the drawings the frog has a low front end 10 to receive thewheel and gradually increases in height to the rear end 11 so that whenthe wheels traveling on a pair of frogs are elevated above the railssuiiiciently they may slide laterally from the frogs onto the rails. Inpractice I employ a pair of frogs for re-railing a car, these friogsbeing constructed alike except that the position of the flange and thetread riding surfaces thereon is reversed. The tread surface 12 ishigher than the flange surface 13. These surfaces are sepa rated by asubstantially perpendicular shoulder 14 which, in the preferredembodiment of the invention, extends lengthwise of the frog from a pointadjacent one corner of the front end of the frog diagonally to a pointnear the opposite corner of the rear end of the frog. Therefore, thetread surface is narrow at its front end and wide at its rear end, andthe flange surface is wide at its front end and narrow at its rear end.The shoulder 14: preferably increases Specification of Letters ZPatent.

Patented 1 011.3, 1920.

Serial No. 305,349.

gradually in height from the front to the rear end of the frog, and thetread surface is sloped or rounded off at the high portion of the frogfrom the shoulder to the left side of the frog, and the flange surfaceis sloped or rounded off at the high portion of the frog from theshoulder to the right side of the frog, as cl arly indicated in Figs.3-5. Cross webs 17 are located'at spaced intervals within the frogbetween its ends to reinforce and strengthen the rod trans versely.

In practice the flange of the wheel traveling on the frog always engagesthe flange surface 13 adjacent the shoulder 14-. As the wheel flangesoften get to be comparatively sharp and as locomotives, tenders and carshave increased greatly in size and weight I have found in some casesthat the wheel flanges will wearor break through the flange surface ofthe frog. This is due not only to the comparative sharpness of the wheelflange and the weight borne thereby, but also to the usual wear on thefrog and largely because in efforts to rerail a locomotive it very oftenhappens that the wheel is permitted to spin on the frog. As will. bereadily understood a very little spinning of a modern locomotive wheelon a frog will drive the flange of the wheel through the surface of thefrog, and perhaps cause a complete collapse of the frog. Sincelocomotives are supplied with frogs because the necessity for the usethereof may occur at remote points on the line of travel, it isimportant to provide a frog which will stand up in service under theunusual conditions to which they are now often subjected and this is theprimary object of my present improvement which comprises a rib 18extending longitudinally of the frog, on the inside thereof, and locatedbeneath the wheel flange wearing surface on the flange surface 13adjacent the shoulder 14-. This rib follows the diagonal direction ofthe shoulder 14: and, as before stated, is located beneath that portionof the tread surface which is engaged by the flange of the wheel in itstravel on the frog, and which portion is located adjacent thelongitudinal shoulder 14. This rib is wider in cross section where itmerges into the top of the frog than at its lower edge, this being apreferred construction since it provides a comparatively wide reinforcement with a mmlmum weight of metal.

The longitudinal rib may be of the same height throughout or it may varyin height as may-be desirable in a proper proportion of parts anddistribution of metal.

My improvement provides increased strength and increased wearing surfaceat that portion of the frog which requires the greatest strength andwhich receives the greatest wear, and this reinforcement is so disposedthat the desired result is accomplished without any material increase inthe cost of manufacture or in weight of metal embodied in the frog. Theentire frog may be made in one casting without any movable parts andpractical experience has demonstrated to me that this reinforcement andadditional wearing surface will accommodate the frog to modernlocomotives, tenders and cars and provide that additional wearingsurface which enables the frog to stand up and serve its purpose underthe conditions of ill usage which frequently result, unintentionally ofcourse, in the use of frogs for rerailing purposes.

Reserving the right to make whatever changes in the form, proportion anddimensions of the parts of my improved frog as fairly come within thescope of the following claims.

lVhat I claim is:

l. A car replacer having an inclined top comprising two separatesurfaces, one higher than the other, an intermediate longitudinally'extending shoulder between said surfaces, and a rib located under thatportion of the lower surface which lies adjacent to said shoulder.

A car replacer having an inclined top comprising two separate surfaces,one higher than the other, a diagonally extending shoulder extendingfrom end to end of the replacer between said surfaces, and a diagonalrib located under that portion of the lower surface which lies adjacentto said shoulder.

A car replacer having an inclined top comprising two separate surfaces,one higher than. the other, a diagonal shoulder between said surfacesand extending from end to end of the replacer, and a vertically disposedrib located under that portion of the top which lies adjacent to saidshoulder, said rib being integral with said top and wider at itsjuncture with said top than at its lower edge.

EMIL K. ROE.

lVitnesses M. A. KIDDLE, WM. 0. BELT.

